Swivel valve joint



SWIVEL VALVE JOINT Filed Aug. 11, 1948 2 Sheets-Sheet l lqvelyl'or A 5 qr? 5 v FA W. M. Eho

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Sept. 13, 1949. w. M; ELIAS SWIVEL VALVE JOINT 2 Sheets-Sheet 2 Filed Aug. 11, 1948 inventor W. M. E

Patented Sept. 13, 1949 RATENT SWIVEL VALVE. JOINT William-M: Elias,*i Winl ler,iManitoba, .Canada fAp'plica'tionAugust 11, 1948, Serial-N0. 43,616

4 Glaims. 1

'1 The "invention relates "to'a pipeswivel "joint and is particularly"designed for" use"on-'farm spraying machines-"j and'im'ore ,pa'rticularly "for machines used "in weed spraying. "Thesei machinesihave a tanki'which icontains""the1liquid to be sprayed, aipower sdrivenizgpump which" delivers 'theiliquidf fromitheitanlr to a "center' pipe section directiyi'at' 'the'jbafck'iof lithe fma'chine. At .eithen'side "ofifthe"ma"chine,: a further pipe 'or boom projects outwardlffromr" themachine and th'ese'i pipesiare "swive1e'd,'"usually on hoses, at either'end ofthe center section-sdthat'lthey can swing backjshojuld it leydf'stfike'ian" obstruction. The center sectionandfihe booms are all at the sameelevation, all havef iets'ftherleon for delivering. the. liquid over the ground" and the "side booms ."have-f's'liita'ble" resilient? means for bolding them' in the working'zposition, "said resilient meanspermittingthe "rear" movement. The resilie'nt "means""also..:bring'th'em"back. When thesebo'oms -stiike obstruction and swing backithe' liquid"continues tobe sprayed, and. as the center. section is" also sprayingfthe same area of "land receivesthe sprayfronri sboththe center section and: the" swungi'bacrboomwhich is both wastefuland'expensive.

The 'obje'ctiofthe' present invention is to providea swivel"valve'joint; between the center section. and the side booms, which'will' maintain all 'sectionsat'the "same'felevation whenrin operation will permit "eithefjboom. to swingaback whenstru'ck" byian "obstruction, and which will shutoff thelflowito aboomzwhen it is swung back and'rso prevent wastefuli sprayingiof "the land.

A further objectbf 'the invention is to provide a'"tight metallic connection Between the sections, instead .of hose'conne'ctionwhich will be positive in operation and willnotbreak.

Ifurther. object "of lithe inventiomis .to constru'ct'the i swivel joinhso 'lthati-T the boom. can swing ba'lcknas abovefidescribed and .canQalso be swung'into a storage position withl the liquid supply. positively shut off.

A stin" further "object of the invention is to construct thewdevice-ii-nrras simpleimanner for cheapness of manufacture, "tightness of the swivel: corinections -to 'preventleakage and will operate over a long period of time.

With thec'abovewjmportant ,and'rother minor objects in view, which will become apparentnas the description proceeds, "theinvention consists essentially in theconstructiorrtand arrangement bfparts hereinatte'r'more; particularly described, reference being'ha'd'to'thc iwbmpanying u lugs" in'whfch-e- Figure 1 is a planview of'a'right handijolnt in working position and partially;showing"the center section and aboom.

'Figure 2 is aplan viewof'the joint showniin Figure 1 but with the boomswuhg into storage position.

"Figure '3 is an enlargedvertical'"sectionarview taken on the line 3-3,"Figure11.

Figure 4 is an enlarged verticalsection'al view taken on theline4'4, Figure 1.

"Figure 5 is an enlarged-vertical sectional'lview taken on the line5-+5,'Figure 1.

Figure 6 is a vertical sectionalviewshowipgia modified construction of the 'joint.

In the drawings,.like characters'of'reference indicate correspondin gparts in the sever'al'ffigures.

'The main bodyportion ".ofhthejoint comprises an angle-shaped castingl, of circular cross; section. 'I'heen'ds' 2 andtof this bodycpo'rtion are. both machined .to :an outwardly lconver'ging.,ta per, terminating in studs"4,,andii5. ,The'n inner portions of the studs 6 are square andfthe outer portions threaded. 'The interior of the' body portion is cored to provideta passagewayf'lftherethrough, the ends of 'the passageway; curving outwardv at the-:centeriof eachftaper.so,.as. t0 formports' 8 and Q'thereon. Ire other 'worlds;.'.the port 8 on the taperf2 is ..in .l communication, through the passagewayi 1,.with the portlon the taper 3.

An elbow castingJ-Hlsis 'formed withsan-cross piece I! at one end. "'Thiscross piecelhas thawinterior machined -.to a. taper tto correspondrwith the taper 2 of the body portionsand-is.vv received thereover. A washer l 2 Qfits; snugly Lover Qlthe square portion'fi ofthe studdrand against the end of the .cross .piece.while.a.nutl3 screws onto the threads and presses. the washerlagainst the cross piece to insurealti'ghtLfit; thetapers.

The interior of the elbow castings,isshollow as.

shown at M andrthishollow passage isadapted to register with the iportjj8sofntheitaper],in the rotation ,oi the elbow casting, therearound. The opposite end of the ielbowircastingisthreaded onto a pipe lisolthatthe pipelfincambeiin communication, through thepassag 14, withi'the port ,8 and can be shut off by rotationoflth-body portion l. v

The tapered end'3 of ...theibody portion Lireceives a T member"I6which...has,.onesend machined .to a taper,.toilfit..ithe..tapered ,..portion.i3. The other endvofjthe'thel'tmenibersis threadedeto. receive a pipelill]. .Aipassagleway J,&-.-,con-- nectsthei'nterior of the pipe?! with'thetapered portion of the T member and this passageway is adapted to register with the port 9 of the body portion I so that in the rotation the pipe I! around the body portion, this port will move out of registration with the passage 18 and shut ofi communication. A washer l9 and nut 20, similar to the washer l2 and nut I3, are secured to the stud in the same way to hold the taper 3 seated in the T member.

When this'device is used on a weed spraying machine, it is made right and left for connection to each end of the center section. The center section would be equivalent to the pipe l5 shown. The right hand section boom would be equivalent to the pipe I1. In this connection it will be noticed supply from the center section while the release of the wing bolt 25 permits vertical rotation of the assembled units. When the machine has 'completed its work and is traveling on the road, the

boom sections are swung rearwardly on the T members 22 until their outer ends are touching or overlapping in a V at the back of the machine. The wing bolts 25 are then loosened and the two booms are swungtogether,'on the center section, up and over against'the back'of the machine. The wing bolts are then tightened and the booms are in storage position. v

that the boom is the same elevation as the pipe l5 but slightly back therefrom. The left hand boom, on the other side of the machine (not shown), will be aligned with the boom I! so that the jets on the center section and the booms will be at the same elevation and the spraying will be uniform. The pump (not shown) on the machine will deliver the spraying liquid to the center section and from there it will pass through the swivel valve joints to the side section booms of the machine. In the movement of the machine over the ground, the section booms may strike exterior objects and will accordingly move back under the impact. In doing so, the T member [Swill turn on the taper 3 of the body portion and the passageway 18 will move out of registration with the port 9, thus shutting off the supply. When the obstruction. has been passed, suitable resilient means (not shown) which are standard construction on such machines, will draw the boom back into place and the spraying liquid will again enter the pipe I1 and pass out the jets.

When the work of the machine is finished and it is being moved along roadways, through gateways or narrow passages, the booms will be swung upwardly. This will rotate the body portion on the elbow casting In so that the port 8 will move out of registration with the passageway l4 and shut on the supply from the .center section. For storage purpose, the boom can beraised to a vertical position and then swung downward and forwardly to lie alongside of the machine, as shown in Figure 2. In this rotation of the boom H, the T member will turn on the tapered portion'3 of the body portion which will pass the passageway l8 out of registration with the port 9. Accordingly, in such stored position the valve joint is shut off in two places which will positively insure that'noleakage will result.

The device shown in Figure 6 is a modified form of thevalve joint, using one swivel. In this device a hollow curved casting 2| is employed, and although shown for the right hand side of the machine, it can also be used on the left hand. One end of this casting, is provided with a T member 22 which corresponds to the T member 16 and the connections thereto are the same. The other end of the casting is threaded to one end of a pipe 23 which is the equivalent of the center section of the spraying machine. The center section is supported by a strap eye 24- in which the section can revolve, while a wing bolt 25 passes through the eye for locking the section against rotation. The opposite end of the center section (not shown) is the same.

By this arrangement the center section and the'side boom are in, alignment when in working position.- The T member 22 permits the boom to swing horizontally backward to shut ofi the 7 What I claim as my invention is:

1. In a swivel valve joint: a hollow body member interconnected"between a pair of pipes for fluid passage therebetween; said body member rotatable in fluid-tight mountings on said pipes; said mountings being rotatable in planes at right angles to each other; and port means in said mountings for shutting off the fluid passage between said pipes, in the rotation of one of said pipes in relation to said body'member.

2. In a swivel valve joint: an angular :body

member, having circular tapers at each'end, ter'- minating in ,threaded studs; a passageway.

through said body member, starting 'at the surface of one taper andterniinating 'atv the sur face of the other taper; casings'rotatably mount,-

ed on said tapered ends or said body member and held thereto by screwmeans on said studs; a passage through'each of said casings, register.- able with the ends ofsaid passagewayat one point, in the rotation'of said-casings around said body member; and means on saidcasings for fluid connection thereto.

3. In a swivel valve joint: a-curved body member having a hollow. passageway. therethrough and a circular tapered end;ja' casing releasably secured to said tapered endand rotatable thereon; a passag through said casing, registerable with the passageway in said body member at one point, in the rotation of said casing around said body member; pipe means .conn'ected'to the op posite end of said body member and fluidly connected to the passageway thereimand pipe means connected to said casing, in communication with said passage and aligned with said first men-.

tioned pipe means.

4. In a swivel valve joint; a right angled body member having circular taperedends; a passage-'- way through said body member with each end of said passageway terminating at a point on the sides of said taper to form a port; hollow tapered casings telescopically receivable over each of the tapered ends of'said body member and rotatable thereon; passages through said casings, registere able with said ports at one location, inthe rotation of same around said body member; means for attaching pipes to said casings for communication with said passages; and adjustable tightening means for retaining said casings on said body member.

WILLIAM M. ELIAS.

REFERENCES CITED The following references are, of record the file of this patent: Y

UNITED STATES PA'I'ENTS Date Number Name 1,115,007 7 Neumeister Oct. 27, 1914 1,403,396 Erickson Jan. 10, 1922 2,217,712 Steelman Oct. 15, 1940 2,272,544 

